You want to turn off System Integrity Protection (SIP) on your Mac to run apps outside Mac App Store, but do not know how to do it. Here is a guide to disabling it on your Mac.
Since MacOS 10.11, Apple has improved security features, with a new feature, called System Integrity Protection (SIP), so apps that require a deep acccess to the system cannot be installed by default. Esspecially in the macOS Catalina version, disabling Gatekeeper is not enough. You will need to disable SIP in order to applications outside of the App Store.
Steps to Disable System Integrity Protection (SIP) on Mac
Below are simple steps to turn off SIP on your Mac. Follow them carefully and you can do it in a few seconds.
Step 1: Restart your Mac, then hold down Command + R key combination to enter recovery mode
Step 2: Once it boots in, clikc on Terminal.
Step 3: Type in the following command to turn off SIP completely.
Step 4: Type in reboot to restart your Mac
Your Mac is now turning off SIP mode completely, and installing apps will become more easier, especially in Catalina 10.15 version. Remember that you must turn off SIP so that you can install applications outside the App Store.
How to Re-enable SIP function
If you want to re-enable SIP feature, simply repeat the step above. All you need is to type in the following command in terminal:
or csrutil enable
After that, reboot your Mac. Have fun!